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METAS VNA Tools II

1. z7 With y unwrap arg y Group Delay 2z z f With p unwrap arg y 3 5 Uncertainty There are three different uncertainty modes None hides the uncertainty Standard shows the standard uncertainty In a scalar case this means 68 coverage and k 1 In a two dimensional case this means 39 coverage and k 1 U95 shows the expanded uncertainty In a scalar case this means 95 coverage and k 2 In a two dimensional case this means 95 coverage and k 2AN Here a scalar quantity consist of only one component e g magnitude of S parameter whereas a two dimensional quantity consists of two components e g complex S parameter In graphical representations the dimension is determined by the number of components shown in one subplot The uncertainties are computed with linear uncertainty propagation This leads to well known problems when computing the absolute value and phase of small quantities 15 4 Database The Databased is designed to specify values and uncertainties of cables cali bration standards connectors and VNA devices 4 1 Cable The tabular page called Cable is designed to specify cables in the database see Figure 9 The following user controls are available 85132F_3 5mm_7mm cable METAS VNA Tools I gt Global Root Path Y D y sun_work 217 01 S Parameter Software Metas na user Projects 01_Basic_Exarnple_Nif m Da New Project y Browse Options About C
2. Mag dB Phase A CalStandards 16100 000 133 979 139 463 139 688 al Ao 16200 000 127 414 147 303 147 424 EL 01419 _AR20dB f m 52371_01 EAT 16000 120 450 tet i 155 187 LE C 01419 Att20dB f m _52371_01_02 sdatb 16400 000 112 793 E 162 854 E 163 028 01419_Att20dB f m _52371_01_04 sdatb J VerStandards 16600 96 619 178 402 i 178 615 F At Odb f m _40506_01 sdatb 16700 88 148 E 173 810 173 688 la Losdlll_547_Loscim _507_01 adatb 16800 79 223 166 056 165 905 J UThru_01_out FreqList_01 fl 16900 69 871 158 324 158 141 Journal_01 vnalog 17000 000 60 229 150 576 150 387 T_01 cal q peg ann 17100 000 50 432 E 142 766 E 142 615 QSOLT_O1 corefa 17200 000 40 571 134 989 134 840 SlidingLoad f _01 slcfg 17300 000 30 895 E 127 255 E 127 048 Slidingload m _01 slcfg aj SOLT 01 cab 17400 000 21 548 E 119 417 119 316 7 SOLT_O1 calefg 17500 000 12 406 111 689 111 510 SH e 17600 000 3 937 E 103 868 103 722 7 UThru_ 01 calet 17700 000 4 415 A 96 150 95 932 _ UThru_01 corcfg 17800 000 12 118 88 331 88 170 17900 000 19 891 80 649 80 412 18000 000 27 308 72 811 72 637 4 m p Figure 5 Data Explorer Table Freq sets the frequency format to Hz kHz MHz or GHz default MHz Numeric Format sets the numeric format default f3 Save Data saves the current data in a file Supported file formats are S Parameter Data sdatb or sdatx Covariance Text sda
3. Graph shows a graphical visualization of multiple files Table shows a tabular visualization of a single file Point shows an uncertainty budget for one frequency point and one parameter of a single file Covariance shows a covariance matrix for a single frequency point or a single parameter of a single file Info shows file information including MD5 checksum of multiple files 3 3 1 Graph The graph tab supports multiple selected files see Figure 4 The following user F T Data Explorer METAS VNA Tools I ls Je Ls Global Root Path i Y Di svniwork 217 01 S Parameter Software Metas Wna user Projects 01_Basic_Example_Nif m New Project E Browse Options About Data Explorer Database Measurement Journal Calibration Contig Error Correction Sliding Load Script Cal Std Model Fit Y Filter Icons Small Graph Table Point Covariance Info Freq List Y Browse On SetUp Conv None Format Freq log Phase 180 Unc U95 Al de D Asvn_work 21 7 01 S Parameter S oftware Metas Vnakus Q None Fixed Scales X Y Cursor 1 2 Norm None Value X A Save Image Ea Copy Image Measurements_01 Ly QSOLT_O1_out 0 08 Gag SOLT_O1_out T a E CalStandards DUTs 0 06 12 4 EL 01419 At20dB f m _52371_01 ao PY 01419 _Art20dB f m _52371_01_01 sdatb 144 01419_Att20dB f m _52371_01_02sdatb 5 0
4. SetUp string 3 Nationallnstruments Common EP VnaF t 4 Vi Run To Cursor Lo etal 4 SetUp Metas Instr DriverWnaWnaS iS 3 Mg VnaHelper 3 System f i TriggerCont 3 namespace MyFirstVNA Cut B gt WnaPortSetti TriggerHold 43 System Data gt Do VnaS EJE i pl l esmmmarys 3 Copy E SISS iO TriggerSingle Systern Componentl a Systeri Windows Forms E f lt sum na gt we Bo WnaSettings TriggerSingled 3 System Xml h e ae Si ae EP VnaSetUpMc i AA Al E E MyFirstVNA cs P lt summar y gt Qutlining g gt VnaSourceSe 4 m E public class MyFirstVNi ivna 4 TP VnaSweepM L_ Metas inst a public interface Ina H A sas namat Member of Metas Instr Driver Yna Ly 2 MnaData AY VinaData Summary Uca Metas InstritisaPte 7 7 z m esane Interface for vector network analyzer Ln 18 Col 35 Ch 35 INS Figure 36 MyFirstVNA Microsoft Visual C 2008 Express Edition Clicking with the right mouse button on IVna opens a content menu Clicking on the menu item Implement Interface will create the basic class structure with all necessary properties and methods for the new driver 50 D Further Reading Documentations e VNA Tools II User Manual e VNA Tools II Math Reference e Data Explorer User Manual Presentations e VNA Tools II Overview e VNA Tools II S Parameter Uncertainty Calculation e VNA Tools II Data Format e VNA Tools II Optimization Calibration e VNA Tools II Step Atte
5. user Projects 01_Basic_Example_Nif m Gg New Project Ey Browse 2 Options About Frequency Linearity Linearity Linearity Linearity Linearity Linearity Linearity Linearity 320 dB 320 dB 100 dB a 100 dB OdB OdB 20 dB 20 dB Hz Mag dB Phase Mag dB Phase Mag dB Phase Mag dB Phase 10 000e 06 70 000e 09 a Linearity dB 150 Power Level dB Figure 17 Database VNA Device Linearity Frequency Hz Switch Term Drift dB with k 2 Directivity Drift db with k 2 Tracking Drift Mag dB with k 2 Tracking Drift Phase deg with k 2 Match Drift dB with k 2 Isolation Drift dB with k 2 26 Data Empire Database Measurement Journal Calbralien Con Frequency Switch Term Drift Directivity Drift Tracking Drift Tracking Drift Match Drift Isolation Drift Hz dB dB ag dB Phase dB dB 50 001e 06 20 000e 09 20 001e 09 nD a 3 3 5 Switch Term Drift dB Directivity Drift dB o i 4 dir 1 0 7E 10 7E 10 sjsiaja3 F H F H 40 001e 09 0 035 0 21 1 120 67 000e 09 60 60 0 035 0 21 120 2 8 e a 67 001e 09 60 S0 0085 0 21 120 70 000e 09 60 60 0035 0 21 120 8 Tracking Drift dB Tracking Drift o o 9 D 1 7E 10 Frequency Hz Match Drift dB Isolation Drift dB lb A i 7E 10 7E 10 Frequency Hz Frequency Hz F
6. Error Corrected Measurements Path SOLT_01_out Without Uncertainties Ready Figure 31 Error Correction controls are available New creates a new configuration for error correction Load Config loads an existing configuration from a file corcfg Save Config saves the configuration to a file corcfg Start Computation computes the error correction Cancel Computation cancels the computation Root Path sets the root path for the configuration of the error correction Measurement Journal Path sets the path vnalog for the measurement journal All raw measurements have to be in the measurement journal Calibration Path sets the calibration path calb Raw Measurement Path sets the directory which contains the raw data Error Corrected Measurement Path specifies the path where the error corrected data will be stored All files from the Raw Measurement Path and all subdirectories will be error corrected and stored in this directory Without Uncertainties disables uncertainty propagation Al 8 Sliding Load The tabular page called Sliding Load is designed to configure and compute the circle fit of a sliding load It merges the circle fit with the measurement of a low band load at the specified frequency point see Figure 32 The following r TA SlidingLoad f _0Lslefg METAS VNA Tools I ole Global Root Path de Y Di svn work 217 01 S Parameter Software Metas Una user Projects
7. Find Resources TestDevice Characterize Noise Identification Zi Real Ohm Zr Imag Ohm Agilent PNA E8361C 50 000000 0 000000 Driver Resource Number of Test Ports Agilent_PNA_Series v visa l 21 7 01 65 ad metas GPIBO 24 INSTR v 2 Comments Agilent PNA E8361C SN US43140748 MM 005805 http cp literature agilent com litweb pdf E 8361 90007 pdf Spec Average Factor Spec IF Bandwidth Hz Spec Power dBm 1 gt 10 15 Ready Figure 15 Database VNA Device Settings New VNA creates a new database item of the type VNA device Load VNA loads a VNA item from a file vnadev Save VNA saves the VNA item to a file vnadev Find Resources finds VISA resources VISA resources are the addresses of devices connected to the computer VISA is a standard which is accepted by nearly all manufactures of VNAs Test Device tests VNA device if VISA connection is possible Characterize Noise characterize the noise of the VNA at the specified fre quency points average factor IF bandwidth and power level The following user controls are available on the sub tabular page called Settings Identification field can contain an identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Driver sets the driver for the communication with the VNA device Resource sets the VISA resourc
8. Hz dB 0 000e 00 2 000e 09 4 2 001e 09 8 000e 09 8 001e 09 18 000e 09 m Repeatability dB i a i m wo 64 T T 1 1 I 0 5E 09 1E 10 1 5E 10 1 8E 10 Frequency Hz Figure 14 Database Connector New Connector creates a new database item of the type connector Load Connector loads a connector from a file conn Save Connector saves the connector to a file conn Identification field can contain an identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Comments field can contain user comments Electrical Specifications is a table with the following columns e Frequency in Hz e Repeatability dB with k 2 23 4 4 VNA Device The VNA Device tabular page is designed to specify VNA devices in the data base see Figure 15 The following user controls are available r ZA Agilent_PNA_E8361C vnadev METAS VNA Tools I GEEA Global Root Path M Y D svn work 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m 153 New Project y Browse 2 Options About Data Explores Database Measurement Joumal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit Cable Calibration Standard Connector VNA Device NewVNA EF LoadVNA a Save VNA
9. Hz e Phase Deviation deg with k 2 Phase deviations are as well translated to magnitude uncertainties The used formalism yields a circular uncertainty region For a load or delay thru the table has the following columns e Frequency in Hz e Return Loss dB with k 2 E g an uncertainty of the Return Loss of 40dB is translated to an un certainty of 0 01 of real and imaginary part of the reflection coefficient 4 2 2 Databased Standard Databased standards define the value and uncertainty budget of each frequency point and parameter This format works without loss of accuracy Thus it is ideal for transferring measurement data and uncertainties from National Metrol ogy Institutes to customers For a databased standard the following control is available Data Path specifies the file path sdatb which contains the S parameters of the standard 18 4 2 3 New Database Standard Wizard The wizard called New Database Standard is designed to create a new databased standard see Figure 11 The following user controls are available F New Database Standard Wizard ES Source Data Path for Definition of Calibration Standard sdatb Destination Database Path Example 3 5mm Loads MM123456_Load f _ 789 Identification Example 3 5 mm female load SN 789 Date 24 03 2015 Ey Cancel Figure 11 Database New Database Standard Wizard Data Path for Definition of Calibration Standard specifies the source
10. Line Gender specifies the gender female male or none of the connector Pin Depth m sets the value and uncertainty k 2 of the pin depth of the standard in m Pin Gap m sets the value and uncertainty k 2 of the pin gap used for the simulation of the connector in m Female Outer Chamfer m sets the value and uncertainty k 2 of the outer chamfer for a female connector in m Female Inner Chamfer m sets the value and uncertainty k 2 of the inner chamfer for a female connector in m Male Outer Chamfer m sets the value and uncertainty k 2 of the outer chamfer for a male connector in m Male Inner Chamfer m sets the value and uncertainty k 2 of the inner chamfer for a male connector in m Pin Diameter m sets the value and uncertainty k 2 of the pin diameter in m For a female connector this should be set to the nominal value of the connector family Hole Diameter m sets the value and uncertainty k 2 of the hole diameter in m For a male connector this should be set to the value of the pin diameter OC Diameter m sets the value and uncertainty k 2 of the outer conductor diameter in m This should be set to the nominal value of the connector family Male CC Diameter m sets the value and uncertainty k 2 of the diameter of the male center conductor in m For a female connector this should be set to the nominal value of the connector family Number of Slots specifies the numb
11. VNA Tools II under 4 Public Documents Metas Instr Drivers Source F a MyFirstVNA Microsoft Visual C 2008 Express Edition File Edit View Refactor Project Build Debug Data Tools Window Help Ready k DEAR A E IE EAA ET EME 7 ATARE TERE E E aba gt X MyFirstYNA cs x Object Browser w X Solution Explorer Solution MyFirst N A X ay r f amp 2 E S Sy MyFirst NA MyFirstVNA y L asmani My Solution zu 4m bajia J E S gt 3 Implement Interface Implement Interface A A Solution MyFirstVWNA 1 project ae Refact y gt E MyFirstYNA using System Collections Generic Fractar Implernent Interface Explicitly sInstr Driver Yna Vna Raf RE AS E eferences Organize Usings m GetStatetstrin g y using NationalInstruments VisaNS _ pesto Paver GetStated 2 4B Metas GuiControls S Insert Snippet Metas Instr Drive Measuring 4B Metas Instr Driver using Metas UncLib Core Sl Surround With Metas Instr Drive Open string 3 Metas InstrWisaExtensions using Metas Vna Data E Metas Instr Driwe 4G Metas UncLib Core ies i 3 Go To Definition Y Preset ee using Metas Instr VisaExtensions Metas Instr Drive L SetState string Metas UncLib LinProp using Metas Instr Driver Vna Find All References FS Tina 0 USD 43 Metas Vna Data using Metas Instr Driver Vna Data Breakpoint gt pi Test YNA
12. VNA Tools I le Je Ls Global Root Path de Y Di sun_ work 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m New Project Sy Browse Options About Data Explorer Database Measurement Journal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit 5 Load Data Start Optimization Cancel Optimization Copy Result Sellings Graph Table Start Agilent Definition Mask Agilent Definition Anritsu Definition Rohde Schwarz Definition Standard Type Standard Type Standard Type Standard Type Short Short Short Short Offset 20 Ohm Offset 20 Ohm Offset 20 Ohm Offset 20 Ohm 0 000000 Y 0 000000 0 000000 0 000000 Offset Delay ps Offset Delay ps Offset Delay rm Offset Length m 0 000000 v 0 000000 0 000000 0 000000 Offset Loss GOhm s i Offset Loss GOhm s Offset Loss dB GH2 0 5 Offset Loss dB GH2 0 5 0 000000 Y 0 000000 0 000000 0 000000 LO E 12H LO E 12H LO E 12H LO pH 0 000000 v 0 000000 0 000000 0 000000 L1 E 24 H H2 o L1 E 24 H H2 L1 E 24 H H2 L1 pH GH2 0 000000 v 0 000000 0 000000 0 000000 L2 E 33 H H2 2 L2 E 33 H Hz 2 L2 E 33 H H2 2 L2 pH GH2z 2 0 000000 v 0 000000 0 000000 0 000000 L3 E 42 H H2 3 L3 E 42 H Hz 3 L3 E 42 H H2 3 L3 pH GH2 3 0 000000 v 0 000000 0 000000 0 000000 Graph Legend Agilent Fit Error Anritsu Fit Error Rohde Schwarz Fit Error DAJ Nominal Data RMS Error AMS Error RMS Error Las Agilent Fit 0 000
13. a typical project example Table 8 Gender of connectors Description 1 Port DUT female 1 Port DUT male 2 Port DUT female male 2 Port DUT male female N Port DUT female male male N Port DUT genderless 4T Pxanp ke22 AmO a ES project directory Measurements Ol rr rd ida ds raw data CalStandards SLoad f _1567_01 SLoad f _1567_01_N1 sdatb SLoad f _1567_01_N2 sdatb SLoad m _1763_01 SLoad m _1763_01_N1 sdatb SLoad m _1763_01_N2 sdatb Load _451_Load m 321801 sdatb Open f _975_Open m _999_01 sdatb Short f _747_Short m _2887_01 sdatb SwitchTerms_01 sdatb Thru_01 sdatb DUTs Ada_2 4mm f _1 85mm m _123_01 sdatb Att20dB f m _808_01 sdatb SOLT_ 010 OMG coher II anew Ne Gate E T Male adn eres error correted data a Ro Ada_2 4mm f _1 85mm m _123_01 sdatb Att20dB f m _808_01 sdatb UThru_01 Uat patadas error correted data e Ada_2 4mm f _1 85mm m _123_01 sdatb Att20dB f m _808_01 sdatb jeune Ok alos AAA AAA measurement journal Silidinelkoad 0l Blc usas idea sliding load config SltainsLloadi02 Lct rada ais sliding load config SUELTO calibra tea e ree kee calibration data SOET OL A O setae ee heres calibration config SOL al CGR oles a on i een eee aera arene Ser ra a wore ee error correction config UT CIDE A calibration data UT net 01 CalCr et iia yardas calibration config UTETU lt 0L COECEL ass tds sae te ade error correction config Figure 35 Tree view of a VNA Tools II project example 48 C
14. effect optional name pal Sdatpy cs 0g28 dais simulated nominal pin gap 10 um Figure 13 Precomputed data for a primary offset short standard 21 4 2 6 Waveguide Shim Standard For a waveguide shim standard the following controls are available Material Parameters specifies the following parameters Relative Permittivity of Air specifies the value and the uncertainty k 2 of the relative permittivity of air Relative Permeability of Air specifies the value and the uncertainty k 2 of the relative permeability of air DC Conductivity of Metal S m specifies the value and the uncer tainty k 2 of the DC conductivity of metal in S m HF Conductivity of Metal S m GHz 0 5 specifies the value and the uncertainty k 2 of the HF conductivity of metal in S m GHz 0 5 Waveguide Connector 1 specifies the mechanical dimensions of the connec tor 1 The following controls are are available Test Port Width m specifies the nominal width of the test port in m Test Port Height m specifies the nominal height of the test port in m Waveguide Shim Section specifies the length of the standard and the me chanical dimensions of the shim section The following controls are avail able Length m sets the value and the uncertainty k 2 of the length of the shim section in m Width m sets the value and the uncertainty k 2 of the width of the shim section in m Height m sets the value and the uncertainty
15. installation one can start METAS VNA Tools II by double clicking on its desktop shortcut 2 Overview METAS VNA Tools II is a software which is designed to compute uncertainties of S parameter measurements e It uses a VNA measurement model for N port Vector Network Analyzers e It supports the following calibration types One Port SOLT GSOLT QSOLT Unknown Thru TRL Juroshek and Optimization e It allows the definition of all influences that affect VNA measurements e It uses the Linear Propagation module of Metas UncLib to propagate all uncertainties through the VNA measurement model e It can visualize S parameter data with uncertainties The graphical user interface is split up into two parts see Figure 1 The navi gation bar is in the upper part of the screen and below is the tabular control r YA Data Explorer METAS VNA Tools I EEES Global Root Path di Y Di svniwork 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m Sg New Project E Browse 2 Options About Data Explorer Database Measurement Journal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit Y Filter Icons Small Graph Table Point Covariance Info Freq List Y Browse On SetUp Conv None Format Freq log Phase 180 Unc U95 Al de D svn_work 217 01 S Parameteri Software Me
16. k 2 of the height of the shim section in m Radius m sets the value and the uncertainty k 2 of the radius of the shim section in m Waveguide Connector 2 specifies the mechanical dimensions of the connec tor 2 For the available controls see Waveguide Connector 1 4 2 7 Waveguide Offset Short Standard For a waveguide offset short standard the following controls are available Material Parameters specifies the material parameters Waveguide Connector specifies the mechanical dimensions of the connector Waveguide Shim Section specifies the length between the reference plane in the connector and the short plane The mechanical dimensions of the shim section are specified as well For more details see section 4 2 6 22 4 3 Connector The Connector tabular page is designed to specify connectors in the database see Figure 14 The following user controls are available N50 conn METAS VNA Tools I Global Root Path gt D sun_work 217 01 S Parameter Software MetasVna user Projects 01_Basic_Exarnple_Nif m Da New Project y Browse 2 Options About Sliding Load Script Cal Std Model Fit Calibration Standard Connector VNA Device New Connector EF Load Connector l Save Connector Database Identification Zi Real Ohm Zr Imag Ohm 50 000000 o 000000 Comments Electrical Specifications i
17. new project see section 2 1 1 Browse selects a root directory Options sets the METAS VNA Tools II options see section 2 1 2 Create Screenshots creates screen shots of all tabular pages About shows the about box 2 1 1 New Project The dialog called New Project can be used to create a new project see Figure 2 The following user controls are available r New Project Project Name Location VNA Setup VNA Device Cable Connec tor YNA Calibration Calibration Template Ca Figure 2 METAS VNA Tools II New Project Project Name specifies a name for the new project A new directory will be created Project Location sets the root directory for the new project VNA Device selects a VNA device Cable selects a cable from the database Connector selects a connector from the database Calibration Template selects a template for the calibration configuration from the database 2 1 2 Options The options dialog can be used to configure the options of METAS VNA Tools II see Figure 3 The following user controls are available Options x Application Default Root Path D workS naT ools Projects Browse Default Root Path Database D svn_work 217 01 S Parameter Software Metas na user D atabase Single Instance Measuremen t Model Drift Model Correlated NA Cancel Figure 3 METAS VNA Tools II Options Default Root Path sets the root directory Default Root Path Databa
18. to hold mode Trigger Cancel cancels the current sweep Format sets the format to Raw Data or Error Corrected Data default Raw Data Get Data reads out the data from the VNA Save Data saves the data to an S parameter file sdatb 5 7 Experiment The Experiment dialog is designed to describe an experiment see Figure 26 Experiments are necessary for DUTs with bad repeatability The journal items of the type experiment will cause VNA Tools II to determine the repeatability of the measurement from repeated measurements If no journal items of the type experiment are used the repeatability uncertainties from the database will be used The following user controls are available Time Stamp specifies the time stamp of the journal item Type sets the type of the experiment to Statistical or Systematic default Sys tematic Statistical assumes a mono modal distribution for the resulting uncertainties Systematic assumes a multi modal distribution Comments field can contain user comments 34 z Journa Experiment ES Time Stamp Type 2010 01 01 00 00 00 Ey y Comment Cua Figure 26 Measurement Journal Experiment 5 8 Measurement Series The dialog called Measurement Series is designed to collect a series of mea surements see Figure 27 The following user controls are available Journal Measurement Series WEN Mode Y VNA SetUp Attenuator Steps dB 10 20 40 40 ECalPath A
19. 000 0 000000 0 000000 ener Anritsu Fit Max Error Max Error Max Error woe Rohde Schwarz Fit 0 000000 0 000000 0 000000 Ready Figure 34 Calibration Standard Model Fit Load Data loads S parameter file sdatb Start Optimization starts optimization of the selected parameters Cancel Optimization aborts optimization Copy Result copies the result to the clipboard Start Agilent Definition describes the start values for the optimization Mask selects optimization parameters Agilent Definition shows the result for the Agilent model Agilent Fit Error shows the fit error for the Agilent model Anritsu Definition shows the result for the Anritsu model Anritsu Fit Error shows the fit error for the Anritsu model Rohde Schwarz Definition shows the result for the Rohde Schwarz model Rohde Schwarz Fit Error shows the fit error for the Rohde Schwarz model 44 A File Types Table 5 shows the supported file types S Parameter Data files can only contain S parameter data In contrast VNA Data files can contain receiver values and ratios of receiver values lreadonly Table 5 File types Description S Parameter Data Binary S Parameter Data Xml S Parameter Data Covariance Text S Parameter Data MMS4 DSD Text S Parameter Data Touchstone VNA Calibration Config VNA Calibration Data Binary VNA Calibration Data Xml VNA Data Binary VNA Data Xml VNA Data CITI VNA Database Cable VNA Database Calibration Standa
20. 01 Basic_Example_M f 1m New Project y Browse 2 Options About Data Explorer Database Measurement Journal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit O New Config B Load Config ll Save Config Root Path D svn_work 217 01 S Parameter Software Metas Vna user Projects 01_Basic_Example_Nif m Ly Browse Measurement Journal Path Journal_01 nalog Sliding Load Path Measurements_01 CalStandards SLoad f _1411_01 Lowband Load Path Measurements_01 CalStandards Load f _11200_Load m _245_01 sdatb Sliding Load Start Frequency Hz 2 000e 09 2 Ready Figure 32 Sliding Load user controls are available New creates a new configuration for a sliding load Load Config loads an existing configuration from a file slcfg Save Config saves the configuration to a file slcfg Root Path sets the root path for the configuration Measurement Journal Path sets the path vnalog for the measurement journal The files of the sliding load and the low band load have to be in the measurement journal Sliding Load Path sets the directory where the raw measurements of the slid ing load are Lowband Load Path sets the path sdatb where the file of the raw mea surement of the low band load is Sliding Load Start Frequency Hz sets the start frequency of the sliding load in Hz Below this frequency the measurement data of the low band load is u
21. 04 7 __ 01419_Att20dB f m _52371_01_03 sdatb g 16 3 01419_At20dB f m 52371_01_04 sdatb 0 02 18 EEEE VerStandards f Py Att OdB f m _40506_01 sdatb y 20 Load f _547_Load m _507_01 sdatb A F A j i at 5 Je UThru_O1_out 0 5E 09 1E 10 1 5E 10 1 8E 10 0 5E 09 1E 10 1 5E 10 1 8E 10 FreqList_01 fl Frequency Hz Frequency Hz Journal_01 vnalog QSOLT_O1 calb oe QSOLT_01 calcta ASOLT_01 corcfg __ SlidingLoad f _01 slefg A n 0 06 HAHAHAHA SlidingLoad m _01 sicfg SOLT_01 calb 8 214 a __ SOLT_D1 calcfg 004 C SOLT_01 corefg 46 4 2 4 UThru_01 calb __ UThru_01 calcfg 18 t 0 02 UThru_01 corcfg 20 a an ee el E 5 21 i i l l e ETS a E i 1 0 5E 09 1E 10 1 5 10 1 8E 10 0 5E 09 1E 10 1 5 10 1 8E 10 Frequency Hz Frequency Hz 4 w p Figure 4 Data Explorer Graph controls are available SetUp sets up the plots default Sx x Ports 1 2 Conv sets the conversion to None S S Impedance Admittance VSWR or Time Domain default None Format sets the data format to Real Imag Mag Phase Real Imag Mag Phase or Cartesian default Mag Phase Freq log sets the frequency axis to linear or logarithmic default Freq lin Mag format sets the magnitude format to Mag lin reflection and transmission linear Mag log reflection and transmission logarithmic or Mag lin log reflection linear and transmission lo
22. 0600 0 003700 40 000e 06 0 000500 0 003100 45 000e 06 0 000400 0 003200 co 50 000e 06 0 000400 0 003200 e 55 000e 06 0 000300 0 005000 E 60 000e 06 0 000300 0 008500 8 i 0 Fl I 1 1 1 1 i 1 cited lc dea 0 1E 10 2E 10 3E 10 4E 10 5E 10 6E 10 7E 10 70 000e 06 0 000500 0 017700 Frequency Hz 75 000e 06 0 000500 0 014400 ae 80 000e 06 0 000400 0 009500 gt aa T E U 85 000e 06 0 000300 0 006000 P 90 000e 06 0 000300 0 003800 2 0 02 20 95 000e 06 0 000300 0 002400 g mo 100 000e 06 0 000300 0 001900 E 0 i 150 000e 06 0 000200 0 001100 0 1E 10 2E 10 3E 10 4 10 5E 10 6E 10 7E 10 Frequency Hz 200 000e 06 0 000200 0 001000 Ready Figure 16 Database VNA Device Noise e Frequency Hz e Noise Floor dB with k 2 e Trace Noise Mag db rms with k 1 e Trace Noise Floor deg rms with k 1 The next sub tabular page contains two tables and is called Linearity see Figure 17 The first specifies the different power levels in dB The second table contains the following columns e Frequency Hz e Linearity Mag dB with k 2 one column for each power level e Linearity Phase deg with k 2 one column for each power level The next sub tabular page is called Drift see Figure 18 It contains a table with the following columns 20 Agilent_PNA_ES361C vnadew METAS VNA Tools I Global Root Path Y Di y sun_ work 217 01S Parameter Software Metas Wna
23. 0e 00 0 0 000e 00 0 000 0 000 Center Hz Span H2 Cw Hz Slope dB GHz Slope dB GHz 0 000e 00 0 000e 00 0 000e 00 s 0 000 2 0 000 Port 1 Port 2 New Table Open Table Save Table Set Segment Table RRA eat 0 2 0 Start Hz Stop Hz Step Hz IFBw Hz Extension s Extension s 0 000e 00 0 000e 00 OK Cancel Ready Figure 20 Measurement Journal VNA Settings Time Stamp specifies the time stamp for the journal item VNA Device specifies the VNA device 29 Preset presets the VNA Save Instrument State saves the instrument state from the VNA to a file 18 Recall Instrument State recalls the instrument state from a file is to the VNA Refresh refresh all settings from the VNA Sweep Mode sets the sweep mode to linear frequency log frequency segment sweep or CW time Sweep Time s sets the sweep time in s Dwell Time s sets the dwell time in s IF Average Factor sets the average factor Start Frequency Hz sets the start frequency in Hz Stop Frequency Hz sets the stop frequency in Hz Points sets the number of sweep points IF Bandwidth Hz sets the IF bandwidth in Hz Center Frequency Hz sets the center frequency in Hz Frequency Span Hz sets the frequency span in Hz CW Frequency Hz sets the frequency for CW sweep mode in Hz New Table creates a new segment table Open Table loads a segment table from a file txt Save Table
24. 1 calcfg Floor 0 000764463 0 028 UThu_01 corcfg ES 0 009017935 3 924 4 m p Figure 6 Data Explorer Point Conv sets the conversion to None S S Impedance Admittance VSWR or Time Domain default None Format sets the format to Real Imag Mag Mag log Phase Phase 360 Phase Unwrap Phase Delay or Group Delay default Mag Id shows or hides the uncertainty input ids default Hide Flat shows a flat or tree uncertainty budget default Tree Expand All expands all tree nodes Collapse All collapses all tree nodes Sort sets the sort order to Description or Uncertainty default Description Copy copies the uncertainty budget to the clipboard The following items will be shown for the selected data point Value indicates the value Std Unc shows the standard uncertainty 68 coverage factor k 1 U95 shows the expanded uncertainty 95 coverage factor k 2 Unc Budget shows a tabular visualization of the uncertainty budget 3 3 4 Covariance The first of the selected files will be shown in the covariance view There are two modes in the covariance view Either one can select a single frequency point and obtains the covariance matrix of multiple parameters at the selected frequency 12 point Or one can select all frequency points and a single parameter in the desired format and obtains the covariance matrix for the selected parameter and format over the hole frequency range see F
25. 1 slctg i SlidingLoad m _01 slcfg 5 _ SOLT_O1 calb SOLT_01 calcfg SOLT_01 corcfg UThru_01 calb i L UT hru_01 calctg UThru_01 corcfg Figure 8 Data Explorer Info available Size shows or hides the file sizes default Show Data modified shows or hides the file dates default Hide Save Table saves the current information in a file Supported file formats are Text txt or AT RX tex Copy Table copies the current information to the clipboard 3 4 Math The same equations are used in Graph Table and Point tab for data conversion and formatting Table 3 shows the equations for data conversions in METAS VNA Data Explorer Variable x is the input quantity y is the converted ouptut Z is the reference impedance and Y is the reference admittance Index 7 is the frequency point 7 is the receiver port and k is the source port Table 4 shows the equations used for data formatting Variable y is the converted input from Table 3 and z is the formatted output 14 Table 3 Conversions Conversion Equation None ae S S Yjk Tjk Tkj Impedance g ite z e Admittance Y ipa Yr VSWR y E Time Domain y ifft x with 256 points Table 4 Formats Format Equation Real Z Ry Imag ZS Mag z ly Mag log z 20 logo yl Phase z arg y Phase 360 z arg y Phase Unwrap z unwrap arg y Phase Delay
26. 2 sdath 2011 08 09 07 52 23 Measurement VNA Device HP8510C_HP85154 1 Measurement 3 Measurement Path Measurements 01 CalStandards SLoad f 1411 01 SLoad f 1411 01 N3 sdath 2011 08 09 07 53 21 Measurement VNA Device HP8510C_HP85154 1 Measurement 4 Measurement Path Measurements 01 CalStandards SLoad f 1411 01 SLoad f 1411 01 N4 sdath 2011 08 09 07 54 09 Measurement VNA Device HP8510C_HP85154_ 1 Measurement 5 Measurement Path Measurements 01 CalStandards SLoad f 1411 01 SLoad f 1411 01 NS sdath Ready Figure 19 Measurement Journal ing user controls are available VNA Device selects a VNA device Open opens the VISA connection to the VNA device Close closes the VISA connection to the VNA device New Journal creates a new measurement journal Load Journal loads an existing measurement journal from a file vnalog Save Journal saves the measurement journal to a file vnalog Auto Save enables or disables auto save of the measurement journal Add VNA Settings adds a journal item for VNA settings to the measurement journal see 5 1 Add Cable Movement adds a journal item for cable movement to the mea surement journal see 5 2 Add Custom Cable Settings specifies a cable for the current journal which is not in the database see 5 3 Add New Connection adds a journal item for a new connection to the mea surement journal see 5 4 Add Custom Connector Settings specifies a connector for the c
27. 4B_Short f calstd METAS VNA Tools I oo amp Global Root Path di Y D sun_work 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m 153 New Project y Browse Options About Data Explores Database Measurement Journal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit Cable Calibration Standard Connector YNA Device _ New Standard 27 Load Standard la Save Standard Type AgilenthfodelStandard Start Frequency Hz Stop Frequency Hz Points Frequency List 0 000e 00 5 70 000e 09 71 Browse Definition Graph Table Point Identification Zi Real Ohm 21 Imag Ohm a Type N 50 female short 50 000000 0 000000 Comments Standard Type Offset 20 Ohm Offset Delay ps Offset Loss GOhm s Short y 50 000000 27 990000 1 365100 a LO E 12 H L1 E 24 H4Hz L2 E 33 H H2 2 L3 E 42 H H2 3 0 131500 2 606 208900 2 68 405000 2 2 020600 Electrical Specifications Frequency Phase Deviation Hz r gt 0 000e 00 0 18 000e 09 1 Ready Figure 10 Database Calibration Standard available New Standard creates a new database item of the type calibration standard For a databased standard see section 4 2 3 Load Standard loads a calibration standard from a file calstd Save Standard saves the calibration standard to a file calstd Start Frequency Hz specifies the start frequency St
28. B 4B Driver y Resource v Find Open Close Cable Movement New Connec tion Delay s Number of toggles Switch states 1 000 5 10 Period s Number of measurements 900 000 96 Cs Figure 27 Measurement Journal Measurement Series Mode sets the mode of the measurement series The following modes are avail able DUT Sliding Load Step Attenuator Switch States ECal Drift and ECal Drift VNA SetUp sets up the VNA to the selected mode Attenuator Steps dB specifies the attenuator steps in dB for a measure ment series of the type step attenuator Multiple steps are comma sepa rated e g 10 20 40 40 ECal Path specifies the path of the ECal where all states will be measured Multiple paths are comma separated e g A B AB Where A and B are reflection paths and AB is a transmission path 30 Driver sets the driver for the communication with the Switch or ECal device Resource sets the VISA resource name of the Switch or ECal device Find finds VISA resources VISA resources are the addresses of devices con nected to the computer Open opens the VISA connection to the Switch or ECal device Close close the VISA connection to the Switch or ECal device Directory sets the parent directory that will contain the directory of the mea surement series Name specifies a name for the measurement series A directory will be created with this name Cable
29. Drivers The following VNA s are supported by METAS VNA Tools Il e Agilent ENA Series Firmware E5061B A 02 06 E5071C A 09 60 e Agilent PNA Series Firmware E836x amp N52xx A 09 40 E5080B A 11 00 e Anritsu VectorStar Firmware MS46040A 1 7 5 MS46040B 2 1 0 e Hewlett Packard 8510C Firmware 07 14 Aug 26 1998 e Hewlett Packard 8751A Firmware 5 00 Mar 7 1993 e Hewlett Packard 8753D Firmware 06 14 Oct 27 1997 e Rohde amp Schwarz ZNB ZNC Firmware 1 94 e Rohde amp Schwarz ZVA ZVB ZVT Firmware 3 20 e Rohde amp Schwarz ZVC ZVK ZVM ZVR Firmware 3 55 The following switch drivers are supported by METAS VNA Tools II e Agilent 11713A e Agilent 11713C The following electronic calibration units are supported e Agilent ECal connected to an Agilent PNA Series VNA Driver Development For VNA s switch drivers and electronic calibration units that are not supported yet the user has the possibility to develop custom drivers that can be used with METAS VNA Tools II This section describes the development of such drivers The minimum software requirements for driver development in Microsoft Visual Studio for METAS VNA Tools II are e METAS VNA Tools II www metas ch vnatools e National Instruments VISA 5 2 www ni com visa e Microsoft Visual C 2008 Express Edition www microsoft com express www microsoft com visualstudio en us products 2008 editions express The step by step procedure for the developme
30. EE OY SSAA Mw 5 3 Custom Cable Settings e s one xsl es amp SE es ee ee aG Sl New CONNEC 4 4 ca wee wal a eee hole A ee 5 5 Custom Connector Settings e o 5 6 Measurement 0 00000 eee ee Da SPOON IAC MIG 2 carne eke og ee Be ce poets eee eee ene ee e 5 8 Measurement Series 529 User Comment ss miss do oS ss hb eR we we amp eo be ee Calibration Config 6 1 Optimization Parameters ae E a ee oR EE Error Correction Sliding Load Script 10 Calibration Standard Model Fit A File Types B Naming Convention C Drivers D Further Reading Al A2 43 44 45 46 49 91 1 Installation 1 1 System Requirements The following list describes the minimum software and hardware requirements of METAS VNA Tools II e Microsoft Windows XP Windows 7 64 Bit is recommended e Microsoft NET Framework 3 5 e Microsoft Windows Installer 3 1 e National Instruments VISA 5 2 e At least 1024 megabytes MB of RAM 4096 MB is recommended e At least 100 megabytes MB of available space on the hard disk e Video adapter and monitor with SVGA 800 x 600 or higher resolution 1920 x 1200 is recommended 1 2 Steps The following steps describe the installation of METAS VNA Tools II 1 Double click on the METAS VNA Tools II setup program 2 Accept license agreement 3 Select installation folder 4 Confirm installation 5 Installation complete After the
31. HIFT key and selecting the files The info tab shows the file name size modification date and computes the MD5 checksum for each selected file See Figure 8 The following user controls are WS Data Explorer METAS VNA Tools I IES Global Root Path Y Di y sun_work 217 01S Parameter Software Metas na user Projects 01_Basic_Example_Nif m a New Project E Browse 2 Options About Database Measurement Joumal Calibration Config Enor Conection Sliding Load Script Cal Std Model Fit Y Filter Icons Small Graph Table Point Covariance Info Visible Size Date modified la Save Table 23 Copy Table Name Size KB MD5 Checksum 01419 AR20dB f m 52371_01_01 sdatb 845 Jacf5e929 388d6c6acg72H 686ab0d9 OLT_O1_out Att1 OB m _40506_01 sdatb 340915769b418262447b1 5af54921 221 Data Explorer gt Freq List a Browse On Spo D svn_work 217 01 S Parameter S oftware Metas Vna us a o Measurements_01 CalStandards DUTs J 01419_Att20dB f m _52371_01 if 01419 Att20dB f m _52371_01_01 sdatb 01419 Att20dB f m _52371_01_02 sdatb i h 01419_Att20dB f m _52371_01_03 sdatb ce 01419_Att20dB f m 52371_01_04 sdatb WerStandards aa La At10dB f m _40506_01 sdatb sv _ Load f _547_Load m _507_01 sdatb Thru_01_out FregList_01 fl Journal_01 vnalog QSOLT_01 calb QSOLT_01 calcfg QSOLT_O1 corefg E SlidingLoad f _0
32. METAS VNA Tools 11 User Manual V1 5 Michael Wollensack April 2015 Contents 1 Installation 1 1 System Requirements eeu LD MCPS 4 oe ek ee ow DD as 2 Overview 2l NASA OA DAR s oa Mowe Sous ie A E a om eset cee Be Se 2l NEw Project esas oo eet a eee o a 212 PONS 2 4 4 22 46 BS eR oe EE Re Cee ES 22 Tabular Control sie oe Gch werkt Be ces ee ee 3 Data Explorer Sal lg AN o IAEA O2e Content Menki uds o a lee eS Soo VISUALZAtION La a a e amp e So AE 32 TADE id iS See A SS bee ee Boor POR sy A AE ES ees ecw fe ess Doe lt COvAlIgnce aa bee ue GS Wis 333445 a Se BEE Dor RO Ss Be ch Ge as Sees Fe eee CE Se ae a a Dll AM elles o aes a as fe Ge Ge et tg ade O A ee A Osos UPCE 2 nara eS een hve Po ew eee o Be a 4 Database AL CADIE 2er ed te eee a do we ee ee a dd id de Ge 4 2 Calibration Standard sx se ia a a da de de 4 2 1 Agilent Model Standard 4 2 2 Databased Standard usina a a BRE 4 2 3 New Database Standard Wizard 4 2 4 Primary Airline Standard 4 2 5 Primary Offset Short Standard 4 2 6 Waveguide Shim Standard 4 2 7 Waveguide Offset Short Standard A COMMECCLOr Y Li a eS de ce aa do e e AA VNA Devices 24401 sia di laa dd 5 8 9 Measurement Journal oul VNA Settings 3 4 4 4 54 46 606 AR ee eo eee Sd a D2 Gable Movement s 246 4 4 4s e
33. _Load m _245_01 sdatb Ideallsolation500hm calstd Figure 29 Calibration Config Optimization Config edits the optimization parameters not in external ver sion Root Path sets the root path for the calibration configuration Measurement Journal Path sets the path vnalog for the measurement journal All measurements used for the calibration have to be in the measurement journal Zr Ohm specifies the complex reference impedance for each test port Description specifies the type of calibration standard and the ports which were measured Additionally one can specify the weight of the standard in an optimization calibration The default setting is that all standards have equal weight The weighting can be switched to covariance weighting in the optimization parameters dialog Mathematical details about weighting schemes are given in VNA Tools II Math Reference Some calibration standards are assumed to be the same or they are mea sured several times In such cases one can couple variables which describe the standard E g In an LRL calibration with 7mm connectors the flush short is the same for port 1 and 2 Measurement specifies the path sdatb where the data of the measured standard is Only the configuration slcfg is given for the sliding load It is possible to specify an N port file for 1 port standards In such a case the number in the description field defines which
34. able Calibration Standard Connector VNA Device New Cable Load Cable la Save Cable Identification Zi Real Ohm Zr Imag Ohm 85132F Flexible Cable Set 3 5 mm Test Port to 7 mm 50 000000 0 000000 Es Comments http cp literature agilent com litweb pdf 851 32 9001 0 pdf a Electrical Specifications Frequency Stability Stability Hz Mag dB Phase 0 000e 00 0 12 18 000e 09 0 12 I 1 i 1 5E 09 1E 10 1 5E 10 1 8 10 Frequency Hz I 1 I 1 5E 09 1E 10 1 5E 10 1 8 10 Frequency Hz Figure 9 Database Cable New Cable creates a new database item of the type cable Load Cable loads a cable from a file cable Save Cable saves the cable to a file cable Identification field can contain an identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Comments field can contain user comments Electrical Specifications is a table with the following columns e Frequency in Hz e Stability Mag dB with k 2 e Stability Phase deg with k 2 16 4 2 Calibration Standard The tabular page called Calibration Standard is designed to specify calibra tion standards in the database see Figure 10 The following user controls are F Y N50 85054B 8505
35. and Connector Table specifies the used test port cable and connector for each port Cable movement adds one or multiple entries for cable movements at the selected ports in the measurement journal before the measure ment series New connection adds one or multiple entries for new connections at the selected ports in the measurement journal before the measurement series Delay s sets the delay between switching states and start of the measure ments in s default 1s Number of toggles sets the number of switching cycles that are performed on the step attenuator before the measurement series is started default 10 Period s sets the period between measurements for drift evaluation in s de fault 900 s Number of measurements sets the number of measurements for drift eval uations default 96 Switch states sets the list of switch states which will be measured Each line in this text box specifies one state 0 is off 1 is on and x is don t change 5 9 User Comment The dialog called User Comment is designed to add user comments to the journal see Figure 28 The following user controls are available Time Stamp specifies the time stamp of the journal item Comments field can contain user comments 36 3 P Journal User Comment Time Stamp 2010 01 01 00 00 00 EM Comment Figure 28 Measurement Journal User Comment 37 6 Calibration Config The tabular pa
36. e Point Covariance Info Freq List B Browse On Freq 18 000e 09 Hz First Last Parameter 21 Conv None y Format Mag Log y D svn_work 217 01 S Parameter Software Metas Vna us ld Flat Expand ll Collapse All Copy Measurements_01 QSOLT_O1_out Value Std Une u95 SOLT_01_out 19 811712054 0 045525110 0 091050221 CalStandards a DUTs Description Une Component Une Percentage EL 01419 _A20dB f m 52371_01 APY 01419 Att20dB F m _52371_01_O1 sdatb Cable Stability 0 042581 431 87 486 01419 4tt20dB f m 52371_01_02 sdatb Position 1 0 030218840 44 061 01419_Att20dB f m _52371_01_03 sdatb i T 01419_An204B f m 52371_01_04 sdatb Port 2 Frequency Index 190 Mag 0 030215411 44 051 p WerStandards Port 2 Frequency Index 190 Phase 0 000455211 0 010 e A Position 4 0 030000000 43 425 Load f _547_Load m _507_01 sdatb H B UThu 01 out Port 2 Frequency Index 190 Mag 0 030000000 43 425 Freqlist_01 fl Calibration Standard 0 010904370 5 737 E Joumal_01 wnalog Load 0 006093604 1 792 QSOLT_O1 calb QSOLT_01 calefg Open 0 007389404 2 635 QSOLT_O1 corcfg Short 0 005212483 ie SlidingLoad f _01 slcfg E T SiidingLoad m _01 slofg Connector Repeatability 0 001 245438 0 075 SOLT_01 calb VNA Drift correlated 0 002590545 0 324 L SOLT_01 calcfg VNA Linearity 0 007091017 2 426 SOLT_01 corcfg 3 x 4 7 UThru 01 calb VNA Noise 0 009050280 3 952 s UThru_0
37. e name of the VNA device Number of Test Ports specifies the number of test ports 24 Comments field can contain user comments Spec Average Factor specifies the average factor used for the noise specifi cation Spec IF Bandwidth Hz specifies the IF bandwidth used for the noise spec ification Spec Power dBm specifies the power level used for the noise floor and lin earity specification The next sub tabular page is called Noise see Figure 16 It contains a table with the following columns r TA Agilent_PNA_E8361C vnadev METAS VNA Tools I GEEA Global Root Path di Y D svniwork 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m 13 New Project E Browse 2 Options About Data Explorer Database Measurement Journal Calibration Contig Error Correction Sliding Load Script Cal Std Model Fit Cable Calibration Standard Connector VNA Device 1 NewVNA Load VNA Save VNA Find Resources Test Device Characterize Noise Settings Noise Linearity Drift Frequency Noise Floor Trace Noise Trace Noise Hz dB Mag dB rms Phase rms Z gt 0 006700 o o45700 S 15 000e 06 0 002500 0 017100 2 20 000e 06 0 001500 0 009600 2 i 25 000e 06 0 001000 0 006400 120 4 30 000e 06 0 000800 0 004600 0 1E 10 2E 10 3E 10 4E 10 5E 10 6E 10 7E 10 Frequency Hz 35 000e 06 0 00
38. er of slots Zero means slotless Slotless Hole Length m sets the value and uncertainty k 2 of the hole length in m for a slotless female connector Slotless Female CC Diameter m sets the value and uncertainty k 2 of the center conductor diameter in m for a slotless female con nector For a male connector this should be set to the nominal value of the connector family Slot Length m sets the value and uncertainty k 2 of the slot length in m for a slotted female connector The slot length must be a multiple of the length of a single line section Slot Width m sets the value and uncertainty k 2 of the slot width in m for a slotted female connector Section specifies the length of the standard and the diameter profile of the line section The following controls are available Length m specifies the value and the uncertainty k 2 of the dis tance between the reference planes of connector 1 and 2 Table Diameter Profile is a table with the following columns e z Position m 20 e U z Position m with k 2 e ICOD m e U ICOD m with k 2 e OCID m e U OCID m with k 2 Graph Diameter Profile shows a graphical visualization of the diame ter profile Connector 2 specifies the gender and the mechanical dimensions of the con nector 2 For the available controls see Connector 1 For a primary airline standard the following precomputed data is needed see figure 12 Database Calibra
39. file sdatb for the definition of the calibration standard Database Path specifies the destination in the database Example 3 5mm1Loads1 MM123456_Load f 789 Identification field can contain an identification string Example 3 5mm female load SN 789 Date sets the date This date is part of the name of the databased standard 4 2 4 Primary Airline Standard For a primary airline standard the following controls are available Material Parameters specifies the following parameters Relative Permittivity of Air specifies the value and the uncertainty k 2 of the relative permittivity of air Relative Permeability of Air specifies the value and the uncertainty k 2 of the relative permeability of air DC Conductivity of Metal S m specifies the value and the uncer tainty k 2 of the DC conductivity of metal in S m HF Conductivity of Metal S m GHz 0 5 specifies the value and the uncertainty k 2 of the HF conductivity of metal in S m GHz 0 5 Misc specifies the following parameter Line Shift m specifies the value and the uncertainty k 2 of the distance in m which the center conductor protrudes in the test port If the center conductor protrudes in port 1 this number is positive In the opposite case it must be negative If no protrusion happens the value is zero Connector 1 specifies the gender and the mechanical dimensions of the con nector 1 The following controls are are available 19
40. garithmic default Mag lin Phase format sets the phase format to Phase 180 Phase 360 Phase Unwrap Phase Delay or Group Delay default Phase 180 Unc sets the uncertainty mode to None Standard or U95 default None Interaction Mode sets interaction mode to None Zoom or Pan default None Fixed Scale activates or deactivates automatically scaling of the x and y axis Cursor shows or hides one or two cursors Norm normalizes all traces to one selected trace or to the mean value of all traces default None In the neighboring control one can select if normal ization is with respect to value or value and uncertainty Normalizing to a value means subtracting certain values from the dataset The resulting uncertianties are the same as from the input data Normalizing to value and uncertainty means subtracting uncertain numbers from the dataset The resulting uncertainties are different from the previous case because the uncertainties are as well subtracted Save Image saves the current plots to a bitmap file Supported file formats are BMP JPG and PNG Copy Image copies the current plots to the clipboard Table 2 shows the different colors for each trace and its associated uncertainty region Table 2 Trace Colors Trace Value Unc Color 1 black 2 brown 3 red 4 orange 5 yellow 6 green 7 blue 8 violet 9 eray 10 light gray 3 3 2 Table The first of the selected files will be shown in the table view see F
41. ge called Calibration Config is designed to configure a VNA calibration The result will be the switch and error terms of the VNA There are two models of the VNA Generic Model stores the switch terms in a N port and the error terms are stored in a 2N port for a N port VNA For a two port VNA this calibra tion model is known as 7 term model It supports the following calibration types One Port GSOLT QSOLT Unknown Thru TRL only 2 port Juroshek and Optimization Switched Model stores the error terms in a 2N port for each switch position for a N port VNA For a two port This model is used for the SOLT calibration The following S parameter matrix describes the calibration error terms of a N port VNA D Xi Xin Ti X21 Da X N Ta ANI AN3 Dy tN Ti Mi Ta Mo IN Mn gt D denotes the directivity of port zx Xy x denotes the crosstalk from port x to port y Tx denotes the reflection tracking of port zx Ty denotes the transmission tracking from port x to port y where Tys Ly Tx M denotes the match of port x and all other terms are additional crosstalk terms On the tabular page called Calibration Config the following user controls are available see Figure 29 New creates a new calibration configuration New from Template loads a configuration template Load Config loads an existing configuration from a file calcfg Save Config saves the configuration to a file calcfg Start Computation compu
42. igure 18 Database VNA Device Drift 2 5 Measurement Journal The tabular page called Measurement Journal is designed to collect measure ment data and to protocol the measurement process see Figure 19 The follow B Journal_01 vnalog METAS VNA Tools I Global Root Path d v D svn work 217 01S Parameter Software Metas Wna user Projects 01_Basic_Exarnple_Nif m DB New Project y Browse Options About Measurement Joumal Calibration Config Enor Corection Sliding Load Script Cal Std Model Fit VNA Device HP8510C_HP85154 1 Open Close New Journal LS Load Journal lal Save Journal Add VNA Settings Add Cable Movement Add New Connection Add Measurement Add User Comment Viewltern gt lt Delete Item Port Cable Connector Cable Movement New Connection 85132F_3 5mm_ mm NBO 85132F_3 5mm_ mm N50 Time Stamp Type Info 2011 08 09 07 45 31 Cable Movement Cable 85132F_3 5mm_T7mm Port 1 Position 0 Movement 1 2011 08 09 07 45 36 New Connection Connector N50 Port 1 Connection 1 2011 08 09 07 49 30 Measurement VNA Device HPS510C_HP85154 1 Measurement 1 Measurement Path Measurements 01 CalStandards SLoad f 1411 01 SLoad f 1411 01 Nl sdatb 2011 08 09 07 51 17 Measurement VNA Device HP8510C_HP85154 1 Measurement 2 Measurement Path Measurements 01 CalStandards SLoad f 1411 01 SLoad f 1411 01 N
43. igure 5 The following user controls are available Conv sets the conversion to None S S Impedance Admittance VSWR or Time Domain default None Format sets the data format to Real Imag Mag Phase or Mag default Mag Phase Mag format sets the magnitude format to Mag lin reflection and transmission linear Mag log reflection and transmission logarithmic or Mag lin log reflection linear and transmission logarithmic default Mag lin Phase format sets the phase format to Phase 180 Phase 360 Phase Unwrap Phase Delay or Group Delay default Phase 180 Unc sets the uncertainty mode to None Standard or U95 default None 10 P WA Data Explorer METAS VNA Tools I AIEE Global Root Path di Y D svn work 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m 154 New Project y Browse 2 Options About Data Explorer Database Measurement Journal Calibration Contig Error Correction Sliding Load Script Cal Std Model Fit Y Filter Icons Small Graph Table Point Covariance Info Freq List B Browse On Conv None gt Format Mag Phase y Mag lin log Phase 180 v Une None ll D svn_work 217 01 S ParameteriSoftwarelMetas Vnatus Fregi MHz Time ps gt Numeric Format f3 A Save Data la Save Table 3 Copy Table q estiba F 511 521 521 51 2 512 QSOLT_O1_out Pare dees z e i a 5 SOLT_01_out MHz Phase Mag dB Phase
44. igure 7 The following user r Data Y Filter E Icons Small z gt Freq List Explorer METAS YNA Tools I O Browse On H S de D s n_work 217 01 S Parameter Software Metas Vna us Measurements_01 i QSOLT_O1_out 1 SOLT_01_out gt RealS11 008 S51e eho nap 1 Laneno 7126009 B B 01419_4tt20dB f alien 01 Real 52 1 fon a 01419 4t20dB Fm 52371_01_01 sdatb Imag 52 1 E ee 7 01419 _Att20dB f mm 52371 01_02 sdatb i 01419_Att20dB f m _52371_01_03 sdatb com 01419_Att20dB f m 52371_01_04 sdatb a de VerStandards A Att 0d8 f m _40506_01 sdatb Eu Load f _547_Load m _507_01 sdatb Lo UThru_01_out pu FreqList_01 fl Joumal_01 vnalog QSOLT_01 calb E ES L QSOLT_O1 calcfg E sone L QSOLT_01 corcfg SlidingLoad f _01 slcfg SlidinaLoad m _01 sictg Mode Covariance Graph Table Point Covariance Info Freq 18 000e 09 Hz Real 51 1 gt Global Root Path di Y D sun_work 217 01 S Parameter Software Metas na user Projects 01_Basic_Exarnple_Nif m New Project y Browse 2 Options About tele All First Last Parameter Numeric Format e3 Imag 51 1 Real 51 2 Imag 51 2 Real 52 2 Imag 52 2 is teoon 7 132e 008 staat y ld Save Table G3 Copy Table Save Image G Co
45. ion in the journal see Figure 23 The following user controls are available Time Stamp 2010 01 01 00 00 00 Ey Cancel Figure 23 Measurement Journal New Connection Time Stamp specifies the time stamp of the journal item Connector selects a connector from the database Port specifies at which port the new connection was made 5 5 Custom Connector Settings The dialog called Custom Connector Settings is designed to describe a con nector which is not in the database for the current journal One can specify the repeatability of such a connector in this dialog see Figure 24 The following user controls are available 32 Journal Custom Connector Settings e Time Stamp Identification Zr Real Ohm Zr Imag Ohm 2010 01 01 00 00 00 Ey 50 000000 gt 0 000000 Commen ts Electrical Specifications Repeatability 10 Repeatability dB l I 0 2 4 6 8 10 Frequency Hz Import Connector Cancel Figure 24 Measurement Journal Custom Connector Settings Time Stamp specifies the time stamp of the journal item Identification field can contain an identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Comments field can contain user comments Electrical Specifications is a table with the following columns e Frequency in Hz e Repeatability dB
46. n with different tabs is on the right 3 1 Filetypes Table 1 shows the supported file types S Parameter Data files can only contain Table 1 File types Description Extension S Parameter Data Binary sdatb S Parameter Data Xml sdatx S Parameter Data Covariance Text eae S Parameter Data Touchstone 8 p VNA Calibration Data Binary calb VNA Data Binary vdatb VNA Data Xml vdatx VNA Data CITI cti citi S parameter data In contrast VNA Data files can contain receiver values and ratios of receiver values 3 2 File Explorer The following user controls are available Filter sets file filter default Icons sets icon size default Small Freq List Browse can be used to select a frequency list file All selected files in the tree view will be interpolated default None Freq List On turns frequency list interpolation on or off default Off Tree View can be used to select one or multiple files Additional files can be selected while holding the CTRL or SHIFT key 3 2 1 Content Menu The content menu of the File Explorer provides some tools for post processing of data sets All post processing tools propagate the uncertainties of the inputs to the results The following tools are available Show in Windows Explorer shows a file or directory in the Windows Ex plorer New Folder creates a new folder in the current directory New Shortcut creates a new shortcut in the current directory Sa
47. nt of a custom driver for a VNA is as follows 1 Check if the environment variable called Public is defined This is the case under Microsoft Windows Vista and 7 but not under XP Un der Microsoft Windows XP you have to set the ZPublic variable to C Documents and Settings All Users two port and multiport 49 Make sure the driver template Metas Instr Driver Template zip is in the template folder of Visual Studio under 4Userprofile ADocumentsY Visual Studio 2008 Templates ProjectTemplates Otherwise copy it from 4Public Documents Metas Instr Drivers Launch Microsoft Visual C 2008 Express Edition Create new project from template in Visual Studio under File New Project My Templates Metas Instr Driver Template and name the project e g MyFirst VNA Add a new class to the project under Project Add Class and name it e g MyFirst VNA This step describes the programming of the driver Declare the class as public and implement the Metas Instr Driver Vna IVna interface See Figure 36 and MSDN website for how to implement an interface Compile project under Build Build Solution Make sure that the post build event is successful and that the MyFirstDriver dll is copied to Public IDocumentsIMetas InstriDrivers Test your driver directly in METAS VNA Tools II or debug it in Microsoft Visual Studio under Debug Start Debugging For more help take a look at the already implemented drivers for METAS
48. nuator Measurement e VNA Tools II Splitter Measurement Tutorials and Screencasts e VNA Tools II Tutorial Perform a SOLT Calibration with the Test VNA Websites e www metas ch vnatools e www metas ch unclib ol
49. op Frequency Hz specifies the stop frequency Points sets the number of data points Frequency List Browse loads a frequency list Frequency List Clear clears the frequency list Identification field can contain an identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Comments field can contain user comments 17 4 2 1 Agilent Model Standard For a calibration standard of the type Agilent model the following controls are available Standard Type specifies the standard type as open short load or delay thru Offset ZO Ohm sets the offset line impedance in Ohm Offset Delay ps sets the offset line delay in ps Offset Loss GOhm s set the offset line loss in GOhm s CO E 15 F sets the first polynomial coefficient for an open C1 E 27 F Hz sets the second polynomial coefficient for an open C2 E 36 F Hz 2 sets the third polynomial coefficient for an open C3 E 45 F Hz 3 sets the fourth polynomial coefficient for an open LO E 12 H sets the first polynomial coefficient for a short L2 E 24 H Hz sets the second polynomial coefficient for a short L2 E 33 H Hz 2 sets the third polynomial coefficient for a short L3 E 42 H Hz 3 sets the fourth polynomial coefficient for a short Electrical Specifications is a table with the following columns for an open or a short e Frequency in
50. part of the data is used E g only 1 1 of a 2 port file is used in a line where the description field is set to Reflection 1 39 Definition specifies the path calstd which contains the definition of the standard Leave this cell empty for a switch term row 6 1 Optimization Parameters The dialog called Optimization Calibration Config is designed to configure the optimization parameters see Figure 30 The following user controls are ni 1 Optimization Calibration Config es Set Mask Error Terms to Mon Leaky Half Leaky Full Leaky Start Calibration Path Y Covariance Weighting Reduced Frequency List Path All Frequencies At Once Mask Switch Terms Mask Error Terms area Figure 30 Optimization Calibration Config available Set Mask Error Terms sets the mask of the error terms for a non half or full leaky model of the VNA Start Calibration Path specifies the start values used for the optimization calb Reduced Frequency List Path specifies a frequency list fl The opti mizer uses the listed frequency points If no frequency list is specified all available frequency points are used Covariance Weighting uses covariance weighting for the objective function If not checked all standards are equally weighted it s supplied the user specified weights are applied All Frequencies At Once optimizes all frequencies at once This is needed when calibration standards are used with unknown parame
51. py Image Real 52 1 Imag 52 1 Format Mag z Real 51 2 Imag 51 2 Real 52 2 SOLT_01 calb SOLT_01 calcfg SOLT_01 corcfg UThru_01 calb UThru_01 calctg D UThru_01 corcfg Correlation Figure 7 Data Explorer Covariance controls are available Freq selects a frequency point or all frequency points for the covariance view default None All selects all frequency points First selects the first frequency point Last selects the last frequency point Parameter selects a parameter for the covariance view default None Format sets the format to Real Imag Mag or Phase default Mag Mode sets the mode to covariance or correlation default Covariance Numeric Format sets the numeric format default e3 Color shows or hides the graphical representation of the correlation matrix default show Save Table saves the current formatted covariance in a file Supported file formats are Text txt or BTEX tex Copy Table copies the current formatted covariance to the clipboard as text Save Image saves the current covariance to a bitmap file Supported file for mats are BMP JPG and PNG Copy Image copies the current covariance to the clipboard as bitmap 13 3 3 5 Info The info tab supports multiple selected files One can obtain information about multiple files by holding the CTRL or S
52. rd VNA Database Connector VNA Database VNA Device VNA Error Correction Config VNA Measurement Journal VNA Sliding Load Config Frequency List 45 Extension sdatb sdatx sdatcv aed s p calcfg calb calx vdatb vdatx cti citi cable calstd conn vnadev corcfg vnalog E slcfg fl B Naming Convention The here described naming convention is meant as a help for the user It is not required by VNA Tools II Table 6 shows some examples for names of calibration standards and devices under test Table 7 shows the naming convention for the Table 6 DUT types Description Name Open Open Short n Short n Flush Short FShort Load Load Sliding Load SLoad Mismatch MMatch Power Sensor PSensor Thru Thru Line l mm Line l mm Adapter Ada Matching Pad MPad Match Thru MT hru Mismatch Thru Mm Thru Attenuator adB AttlaldB Step Attenuator adB selected state s x dB Splitter Coupler StepAttlaldB_ s 1 dB Splitter Coupler different connector types Table 8 shows the naming convention for the gender Table 7 Connector types Description Name 1 0mm Connector 1 85mm Connector 2 4mm Connector 2 92 mm Connector 3 5mm Connector 7mm Connector Type N 50Q Connector Type N 75Q Connector 46 1 0mm 1 85mm 2 4mm 2 92mm 3 5mm Tmm N50 NTS of connectors Figure 35 shows
53. saves the segment table to a file txt Set Segment Table sets the segment table to the VNA Segment Table is a table with the following columns e Start Frequency in Hz e Stop Frequency in Hz e Step Size in Hz e IF Bandwidth in Hz System ZO Ohm specifies the reference impedance in Ohm Source 1 Power dBm sets the power level of the first source in dBm Source 1 Slope dB GHz sets the slope of the first source in dB GHz Source 2 Power dBm sets the power level of the second source in dBm Source 2 Slope dB GHz sets the slope of the second source in dB GHz 30 Port 1 Attenuator dB sets the attenuation of the first port in dB Port 1 Extension s shifts the reference plane of port 1 by a definable delay in s Port 2 Attenuator dB sets the attenuation of the second port in dB Port 2 Extension s shifts the reference plane of port 2 by a definable delay in s 5 2 Cable Movement The dialog called Cable Movement is designed to describe a cable movement for the journal see Figure 21 The following user controls are available Time Stamp 2010 01 01 00 00 00 Ey Cable Figure 21 Measurement Journal Cable Movement Time Stamp specifies the time stamp of the journal item Cable selects a cable from the database Port specifies at which port the cable was moved Position specifies the position of the cable Thus each cable movement requires an increase of the position number Wi
54. se sets the root directory for the database Single Instance limits the METAS VNA Tools II application to one instance Drift Model specifies the used drift model One can chose the Correlated or Uncorrelated model default Correlated The drift model which is un correlated is obsolete and was used in older versions of METAS VNA Tools IT before V0 9 The new drift model correlated uses the time stamp of the measurement to compute how big is the drift between multiple measurements 2 2 Tabular Control The following tabular pages are available Data Explorer is designed to visualize S parameter files Database specifies values and uncertainties of cables calibration standards connectors and VNA devices Measurement Journal is used to collect measurement data and to protocol the measurement process Calibration Config configures a VNA calibration and computes the error terms Error Correction configures and computes the error correction of raw mea surement data Sliding Load configures and computes the circle fit of a sliding load Tools provides some tools for post processing of data Script provides a built in Iron Python script engine Agilent Model Fit computes the Agilent model parameters for a calibration standard 3 Data Explorer The Data Explorer tabular page is designed to visualize S parameter files The eraphical user interface is split up into two parts The file explorer is on the left and the visualizatio
55. sed 42 9 Script The tabular page called Script provides a built in Iron Python script engine see Figure 33 The following user controls are available F T Script METAS VNA Tools I EEES Global Root Path de Y D sun_work 217 01 S Parameter Software Metas Wna user Projects 01 Basic_Example_M f 1m New Project Sy Browse Options About Data Explorer Database Measurement Journal J Calibration Config Error Correction Sliding Load Script Cal Std Model Fit _ New Script EF Load Script la Save Script P Run Script Abort Script import clr a clr AddReference System Windows Forms clr AddReference Metas Vna Tools from System Threading import Thread from System Windows Forms import MessageBox from Metas Vna Tools import Script s Script RootPath m Ready Figure 33 Script New Script creates a new script Load Script loads an existing script from a file py Save Script saves the script to a file py Run Script executes the script Abort Script aborts the execution of the script Input field shows the script Output field shows the output of the script 43 10 Calibration Standard Model Fit The tabular page called Cal Std Model Fit computes the parameters of a calibration standard for an Agilent Anritsu and Rohde Schwarz model see Figure 34 The following user controls are available P WA Agilent Model Fit METAS
56. tas Vna us a None Y Fixed Scales X Y Cursor 1 2 Norm None Value A Save Image Ea Copy Image Measurements_01 4 QSOLT_O1_out 0 08 gy SOLT_O1_out mt M __ FLT F CalStandards 5 DUTs 0 06 12 4 EL 01419 At20dB f m _52371_01 z PY 01419 _Att20dB f m _52371_01_01 sdatb 14 01419_Att20dB f m _52371_01_02sdatb G 0047 __ 01419_Att20dB f m _52371_01_03 sdatb g 164 01419_Att20dB f m _52371_01_04 sdatb 0 02 18 3 VerStandards SE _ Load f _547_Load m _507_01 sdatb A 4 VT i a aj UThru_O1_out 0 5E 09 1E 10 1 5E 10 1 8E 10 0 5E 09 1E 10 1 5E 10 1 8E 10 FreqList_01 fl Frequency Hz Frequency Hz __ Journal_01 vnalog gt QSOLT_O1 calb g i 0 08 L QSOLT_01 calcta 10 ASOLT_01 corcfg SlidingLoad f _01 slcfg 19 YH EEFE 0 06 A SlidingLoad m _01 sicfg a SOLT_O1 calb ee a ae s a a ae memen aa m ma meae aem ae y __ SOLT_01 calcfg 5 p 04 _ SOLT_01 corefg 46 4 2 UThru_01 calb _ UThru_01 calefg 18 0 02 UThru_01 corcfg Ll 4 _ 20 gg OA m A ate 21 i i l l I i o l l 0 5E 09 1E 10 1 5 10 1 8E 10 0 5E 09 1E 10 1 5 10 1 8E 10 Frequency Hz Frequency Hz 4 w b Ready Figure 1 METAS VNA Tools II 2 1 Navigation Bar The following user controls are available in the navigation bar Global Root Path sets the root directory for all tabular pages New Project creates a
57. ters which are constant over frequency Example given Primary airlines primary offset shorts and primary flush shorts If not checked each frequency will be optimized individually Mask Switch Terms selects the switch terms which will be optimized Mask Error Terms selects the error terms which will be optimized This mask represents a 2N x 2N S parameter matrix for a VNA with N ports In the upper left part of the matrix are the directivity and isolation terms The match terms are in the lower right of the diagonal The other check boxes represent tracking terms 40 7 Error Correction The tabular page called Error Correction is designed to configure the error correction of the raw measurement data see Figure 31 The following user F TA SOLT_01 corcfg METAS VNA Tools I BCE Global Root Path de Y Di sun_ work 217 01S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m New Project Sy Browse Options About Data Explorer Database Measurement Journal Calibration Config Error Correction Sliding Load Script Cal Std Model Fit New Config EF Load Config ld Save Config gt Start Computation Cancel Computation Root Path IMD svn_work 21 7 01 S Parameter S oftware Metas Vna usersProjects 01_Basic_Example_N f m LS Browse Measurement Journal Path Journal_01 vnalog Calibration Path SOLT_01 calb Raw Measurements Path Measurements_01
58. tes the VNA calibration and saves the VNA cali bration to a file calb Cancel Computation cancels the computation 38 SOLT_01 calcfg METAS VNA Tools I Global Root Path Y D y sun_work 217 01S Parameter Software Metas na user Projects 01_Basic_Exarnple_Nif m 13 New Project y Browse Options About New Load Config lA Save Config Start Computation E Cancel Computation Calibration Type i Root Path SOLT v D svn_work 217 01 S Parameter Software Metas Vna user Projects 01_Basic_Example_N f m Measurement Journal Path Optimiziation Config Joumal_01 vnalog ZiReal Zrimag Description Measurement Definition Ohm Ohm 50 o Reflection 1 Measurements_015CalStandards Openff_744_0pen m _1041_01 sdatb N50485054B485054B_Openff calstd Reflection 1 Measurements_01 CalStandards Short f _ 07_Short m _729_01 sdatb N50485054B85054B _Short f calstd Reflection 1 SlidingLoad f _01 slcfg N501850548185054B_L SLoad f calstd Reflection 2 Measurements_01 CalStandardsOpen f _744_Open m _1041_01 sdatb N50485054B485054B_Open m calstd Reflection 2 Measurements_01 CalStandards Short f _ 707_Short m _729_01 sdatb N50850548 85054B_Short m calstd Reflection 2 SlidingLoad m _01 slcfg N501850548185054B_L SLoad m calstd Transmission 1 2 Measurements_01 CalStandards T hru_O1 sdatb IdealT hru500hm calstd Isolation 1 2 Measurements_014CalStandardsiLoad f _11200
59. tev Touch stone slp s2p s p VNA Data vdatb or vdatx or CITI cti or citi Save Table saves the current formatted data in a file Supported file formats are Text txt or BTEX tex Copy Table copies the current formatted data to the clipboard One can select one or more rows of the table and copy the data to the clipboard with CTRL C or with the context menu of the table CTRL A selects all data 3 3 3 Point The first of the selected files will be shown in the point view One can select one frequency point and one parameter and obtains the uncertainty budget of the selected data point see Figure 6 The following user controls are available Freq selects a frequency point for the uncertainty budget default None Time selects a time point for the uncertainty budget default None Only visible when conversation is set to Time Domain First selects the first frequency or time point Last selects the last frequency or time point Parameter selects a parameter for the uncertainty budget default None 11 r T Data Explorer METAS VNA Tools I o Je Js Global Root Path de Y D svniwork 217 01 S Parameter Software Metas Una user Projects 01_Basic_Example_Nif m 154 New Project E Browse Options About Data Explorer Database Measurement Journal Calibration Contig Error Correction Sliding Load Script Cal Std Model Fit Y Filter Icons Small Graph Tabl
60. th each change of the position number the cable uncertainties specified in the database are added to the measurement data 5 3 Custom Cable Settings The dialog called Custom Cable Settings is designed to describe cables which are not in the database for the current journal One can specify the magnitude and phase stability of such a cable in this dialog see Figure 22 The following user controls are available Time Stamp specifies the time stamp of the journal item Identification field contains identification string Zr Real Ohm specifies the real part of the reference impedance in Ohm Zr Imag Ohm specifies the imaginary part of the reference impedance in Ohm Comments field can contain user comments l a Journal Custorn Cable Settings eS Time Stamp Identification Zr Real Ohm Zr Imag Ohm 2010 01 01 00 00 00 Ey 50 000000 gt 0 000000 Commen ts Electrical Specifications Stability Stability Mag dB Phase 0 2 4 6 8 10 Frequency Hz 1 l l 0 2 4 6 8 10 Frequency Hz Import Cable Cancel Figure 22 Measurement Journal Custom Cable Settings Electrical Specifications is a table with the following columns e Frequency in Hz e Stability Mag dB with k 2 e Stability Phase deg with k 2 Import Cable imports a cable from the database 5 4 New Connection The dialog called New Connection is designed to describe a new connect
61. tionStandards ConnectorFamily Primary name Mame CalSGd sic AS primary airline standard dat as avded tedadeeetweenes directory for precomputed S parameter data name _c1 sdatb simulated connector female male at port 1 name _c2 sdatb simulated connector female male at port 2 name _ki sdatb kapton or adapter effect on port 1 optional name _k2 sdatb kapton or adapter effect on port 2 optional name _pgi sdatb simulated nominal pin gap 10 wm at port 1 name _pg2 sdatb simulated nominal pin gap 10 wm at port 2 Figure 12 Precomputed data for a primary airline standard 4 2 5 Primary Offset Short Standard For a primary offset short standard the following controls are available Material Parameters specifies the material parameters Connector specifies the gender and the mechanical dimensions of the connec tor Line Section specifies the length between the reference plane in the connector and the short plane The diameter profile of the line section is specified as well For more details see section 4 2 4 For a primary offset short the following precomputed data is needed see figure 13 Database CalibrationStandards ConnectorFamily Primary name mame lt CaUStG 2keciitu cmiire putas primary offset short standard datar rias directory for precomputed S parameter data name l el sdatbrsei rierien simulated connector female male name kl sdat beni kapton or adapter
62. urrent jour nal which is not in the database see 5 5 28 Add Measurement adds a measurement entry to the journal see 5 6 Add Begin Experiment defines the start of an experiment see 5 7 Add End Experiment defines the end of an experiment Add Measurement Series adds an entry for a series of measurements to the journal see 5 8 Add User Comment adds a user comment to the measurement journal see 5 9 View Item shows the selected item of the journal Delete Item deletes the selected items of the journal Cable and Connector Table specifies the test port cable and connector for each port Cable movement adds one or multiple entries in the measurement jour nal for cable movements at the selected ports before the measure ment New connection adds one or multiple entries in the measurement jour nal for new connections at the selected ports before the measurement 5 1 VNA Settings The dialog called VNA Settings is designed to set up the VNA see Figure 20 The following user controls are available r Journal VNA Settings 3 Time Stamp 2010 01 01 00 00 00 Jr YNA Device X Preset Save Instrument State Recall Instrument State Refresh Sweep System Sweep Mode Sweep Time s Dwell Time s IF Average Factor 20 Ohm LinearFrequency v 0 000e 00 0 000e 00 D 0 000e 00 Frequency Source 1 Source 2 Start Hz Stop Hz Points IF Bandwidth Hz Power dBm Power dBm 0 000e 00 0 00
63. ve Data As saves the current file in another file Supported file formats are S Parameter Data sdatb or sdatx Covariance Text sdatcv Touchstone s1p s2p s p VNA Data vdatb or vdatx or CITI cti or citi Change Port Assignment changes the port assignment Change Port Zr changes the reference impedance to a specified complex value in Ohm Math provides the following math tools Add 1st 2nd adds N port 1 and N port 2 Subtract 1st 2nd subtracts N port 2 from N port 1 Subtract 2nd 1st subtracts N port 1 from N port 2 Multiply 1st x 2nd multiplies N port 1 with N port 2 Divide 1st 2nd divides N port 1 by N port 2 Divide 2nd 1st divides N port 2 by N port 1 Cascade provides the following cascade tools Cascade 1st and 2nd cascades 2N port 1 with N port 2 or cascades 2 port 1 with 2 port 2 Cascade 2nd and 1st cascades 2N port 2 with N port 1 or cascades 2 port 2 with 2 port 1 Decascade 1st from 2nd decascades 2N port 1 from N port 2 or de cascades 2 port 1 from 2 port 2 Decascade 2nd from 1st decascades 2N port 2 from N port 1 or de cascades 2 port 2 from 2 port 1 Merge lower and upper merges two data sets at a given frequency point Mean Data Set computes the mean of a data set Circle Fit Data Set computes the circle fit of a data set Properties shows the file or directory properties 3 3 Visualization The Data Explorer supports different view modes
64. with k 2 Import Connector imports a connector from the database 5 6 Measurement The Measurement dialog is designed to collect measurement data from the VNA see Figure 25 The following user controls are available Time Stamp specifies the time stamp of the journal item VNA Device specifies the VNA device Path field contains the path of the measurement data Import imports an existing file instead of making a new VNA measurement Only available if VNA connection is closed Mode selects a setup mode for the VNA e g S1 1 SetUp sets up the VNA to the selected mode Measure performs a single sweep on the VNA wait until the sweep is complete and reads out the data 33 r Journal Measuremen t o aja Time Stamp 2010 01 01 00 00 00 B YNA Device Path Import SetUp unknown Measure Trigger Single Cont Hold Cancel Format RawData v Get Data Save Data Graph Table SetUp Conv None gt Format Mag y Freqlog Maglin v Phase 180 Unc None All Q None Y Fixed Scales X Y Cursor 1 2 Norm Value la Save Image 43 Copy Image Mag 51 1 dan Mag 51 2 dan 4 6 Frequency Hz Mag 52 1 dan Mag 52 2 n Cancel Ready Figure 25 Measurement Journal Measurement Trigger Single performs a single sweep on the VNA and waits until the sweep is complete Trigger Cont sets the trigger of the VNA to continuous mode Trigger Hold sets the trigger of the VNA

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